function showfriend()
{
var location = new String(document.location);
url = "http://www.apexshelters.co.uk/friendform.htm?"+escape(location);
var window_width = 360;
var window_height = 280;
var sw = screen.width;
var sh = screen.height;
var window_left = ((sw/4) - (window_width/4) - 16);
var window_top = ((sh/4) - (window_height/4) - 20);
friendwin = open(url,"friend","width="+ window_width +",height="+ window_height +",scrollbars=no,toolbar=no,directories=no,menubar=no,resizable=yes,status=no,left="+ window_left +",top="+ window_top +",screenx="+ window_left +",screeny="+ window_top);
}

function callback()
{
url = "http://www.apexshelters.co.uk/callback.htm";
var window_width = 360;
var window_height = 280;
var sw = screen.width;
var sh = screen.height;
var window_left = ((sw/4) - (window_width/4) - 16);
var window_top = ((sh/4) - (window_height/4) - 20);
friendwin = open(url,"callback","width="+ window_width +",height="+ window_height +",scrollbars=no,toolbar=no,directories=no,menubar=no,resizable=yes,status=no,left="+ window_left +",top="+ window_top +",screenx="+ window_left +",screeny="+ window_top);
}

function catalogue()
{
url = "http://www.apexshelters.co.uk/catalogue.htm";
var window_width = 360;
var window_height = 280;
var sw = screen.width;
var sh = screen.height;
var window_left = ((sw/4) - (window_width/4) - 16);
var window_top = ((sh/4) - (window_height/4) - 20);
friendwin = open(url,"catalogue","width="+ window_width +",height="+ window_height +",scrollbars=no,toolbar=no,directories=no,menubar=no,resizable=yes,status=no,left="+ window_left +",top="+ window_top +",screenx="+ window_left +",screeny="+ window_top);
}

function sitevisit()
{
url = "http://www.apexshelters.co.uk/sitevisit.htm";
var window_width = 360;
var window_height = 280;
var sw = screen.width;
var sh = screen.height;
var window_left = ((sw/4) - (window_width/4) - 16);
var window_top = ((sh/4) - (window_height/4) - 20);
friendwin = open(url,"sitevisit","width="+ window_width +",height="+ window_height +",scrollbars=no,toolbar=no,directories=no,menubar=no,resizable=yes,status=no,left="+ window_left +",top="+ window_top +",screenx="+ window_left +",screeny="+ window_top);
}